International Journal of Polymer Science最新文献_第5页

Design and Fabrication of Metallic-Conductive Polymer-Based Hybrid Film Interconnections for Stretchable Electronic Devices 可拉伸电子器件用金属导电聚合物复合薄膜互连的设计与制造

IF 3.3 4区化学

International Journal of Polymer Science Pub Date : 2023-06-29 DOI: 10.1155/2023/1392115

M. Sucharitha, Reena Thomas, B. Jyothi, Edeh Michael Onyema, Gashaw Bekele

引用次数: 0

ANN and RSM Modeling for the Synthesis of Avocado Seed Starch Combined Orange Peel Extract Antimicrobial Packaging Film 牛油果籽淀粉复合橘皮提取物抗菌包装膜合成的ANN和RSM模型

IF 3.3 4区化学

International Journal of Polymer Science Pub Date : 2023-06-16 DOI: 10.1155/2023/8877598

Yasin Ahmed Waday, Ermias Girma Aklilu

{"title":"ANN and RSM Modeling for the Synthesis of Avocado Seed Starch Combined Orange Peel Extract Antimicrobial Packaging Film","authors":"Yasin Ahmed Waday, Ermias Girma Aklilu","doi":"10.1155/2023/8877598","DOIUrl":"https://doi.org/10.1155/2023/8877598","url":null,"abstract":"Cooperation of essential oil into film formation results in active packaging materials, which can improve the quality and freshness of the foods and extend the shelf life. In the present study, extraction of starch and essential oil was performed. The active films were developed through the solvent casting method. The influence of avocado seed starch and orange peel essential oil was investigated and optimized using response surface methodology and an artificial neural network on the tensile strength, water vapor permeability, and antimicrobial properties of active films. The results showed that both models performed reasonably well, but trained artificial neural networks have more modeling capability rather than the response surface method. The optimum conditions were found to be orange peel oil of 0.57 g and 30% w/w of avocado seed starch with the values of the corresponding responses of 3.94 MPa, \u0000 \u0000 3.098\u0000 ×\u0000 \u0000 \u0000 10\u0000 \u0000 \u0000 −\u0000 10\u0000 \u0000 \u0000 \u0000 g/ms Pa, and 17.273 mm for tensile strength, water vapor permeability, and inhibition zone, respectively. Generally, the orange peel extract had an effective and promising alternative for the commercial production of antimicrobial packaging films.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45998600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cure Kinetics of a Carbon Fiber/Epoxy Prepreg by Dynamic Differential Scanning Calorimetry 动态差示扫描量热法研究碳纤维/环氧预浸料的固化动力学

IF 3.3 4区化学

International Journal of Polymer Science Pub Date : 2023-06-15 DOI: 10.1155/2023/5244722

Kaihua Chen, Xiaobao Zhu, G. Zhao, J. Chen, Shenghui Guo

{"title":"Cure Kinetics of a Carbon Fiber/Epoxy Prepreg by Dynamic Differential Scanning Calorimetry","authors":"Kaihua Chen, Xiaobao Zhu, G. Zhao, J. Chen, Shenghui Guo","doi":"10.1155/2023/5244722","DOIUrl":"https://doi.org/10.1155/2023/5244722","url":null,"abstract":"Investigating the curing kinetics of a fiber prepreg system is beneficial to the controlling of prepreg laminate curing process. In the present work, a dicyandiamide (DICY)-cured carbon fiber/epoxy prepreg system was investigated by non-isothermal differential scanning calorimetry (DSC) at 2, 5, 10, and 20°C/min to attain the glass transition temperature for uncured prepreg and fully cured sample, which were estimated to be 7.6°C and 106.2°C, respectively. The activation energy (Ea) of the prepreg system was evaluated by Kissinger and Ozawa methods, and Friedman method was also employed to reveal the evolution of Ea as a function of curing degree. The kinetic parameters were determined by fitting the average Ea value obtained by Friedman method into Málek methodology, and the two parameters Šesták–Berggren model was found to best describe the curing kinetic of the prepreg system. The preexponential factor was calculated to be \u0000 \u0000 6.0\u0000 ×\u0000 \u0000 \u0000 10\u0000 \u0000 \u0000 8\u0000 \u0000 \u0000 \u0000 min−1, with the overall reaction order at nearly 2.5. The prediction curves, based on Friedman method and autocatalytic model, were in good agreement with the experimental data.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46868022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Advantage of Alginate Bioinks in Biofabrication for Various Tissue Engineering Applications 海藻酸生物墨水在生物制造中的优势，可用于各种组织工程应用

IF 3.3 4区化学

International Journal of Polymer Science Pub Date : 2023-06-07 DOI: 10.1155/2023/6661452

S. Datta

引用次数: 1

Application of Nanoprecipitation Technique to Develop Poloxamer-407 Facilitated Solid Lipid Nanoparticles for the Controlled Delivery of Tacrolimus 应用纳米沉淀法制备Poloxamer-407促进固体脂质纳米颗粒以控制他克莫司的递送

IF 3.3 4区化学

International Journal of Polymer Science Pub Date : 2023-06-01 DOI: 10.1155/2023/7356899

Muhammad Zaman, A. Iqbal, H. S. Sarwar, M. H. Butt, M. Iqbal, Naveed Nissar, A. Mumtaz, Hafiza Yusra Nazeer, A. Alshammari, Muhammad Shahid Riaz

{"title":"Application of Nanoprecipitation Technique to Develop Poloxamer-407 Facilitated Solid Lipid Nanoparticles for the Controlled Delivery of Tacrolimus","authors":"Muhammad Zaman, A. Iqbal, H. S. Sarwar, M. H. Butt, M. Iqbal, Naveed Nissar, A. Mumtaz, Hafiza Yusra Nazeer, A. Alshammari, Muhammad Shahid Riaz","doi":"10.1155/2023/7356899","DOIUrl":"https://doi.org/10.1155/2023/7356899","url":null,"abstract":"Currently, the solid lipid nanoparticles (SLNs) are utilized as a novel approach for the controlled drug delivery system (CDDS). Tacrolimus (TCM), a lipophilic drug, can easily be encapsulated in the hydrophobic core of these SLNs using nanoprecipitation technique. The current aim was to develop the controlled release Poloxamer (PLX) facilitated TCM loaded SLNs (PLX/TCM-SLNs), followed by their physicochemical evaluations, including chemical compatibility, particle size, surface charge, surface morphology, nature of SLNs, loading efficiency (LE), entrapment efficiency (EE), in vitro drug release studies, release kinetic modeling, and statistical evaluation. Here we also evaluate physicochemical properties of TCM and investigate solubility profile for improvement and dissolution rate of PLX/TCM-SLNs. PLX was used in the process as a polymer due to its low toxicity and weak immunogenic properties. The prepared formulation was characterized by scanning electron microscopy (SEM) images, and Fourier transform infrared spectroscopy (FTIR) has confirmed the compatibility of the selected ingredients, whereas particle size analysis showed that prepared PLX/TCM-SLNs were of nanosized (\u0000 \u0000 120.6\u0000 ±\u0000 9\u0000 \u0000 nm) having zeta potential of −21.3 Mv. On the other hand, SEM had revealed the smooth and uniform surface of the particle, while X-ray diffraction (XRD) confirmed the uniform surface as crystalline structure of TCM in PLX/TCM-SLNs masked. A satisfactory level of EE (\u0000 \u0000 94.5\u0000 ±\u0000 2.74\u0000 \u0000 %) has also been noticed. Furthermore, in vitro drug release studies have explored the controlled release of drug during 8 hours, following zero order release kinetics and diffusion type of release mechanism. Outcomes of the studies have advocated the successful preparation of SLNs, as controlled release PLX/TCM-SLNs have been prepared efficiently.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43739985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Acquisition of Key Vacuum-Assisted Resin Transfer Molding Parameters through Reverse Scanning for Application in the Manufacturing of Large Fiber-Reinforced-Plastic Products 通过反扫描获取真空辅助树脂传递成型关键参数在大型纤维增强塑料制品制造中的应用

IF 3.3 4区化学

International Journal of Polymer Science Pub Date : 2023-05-23 DOI: 10.1155/2023/7927196

G. Luo, Kai-Lin Chen, Chen-Ting Hsu

{"title":"Acquisition of Key Vacuum-Assisted Resin Transfer Molding Parameters through Reverse Scanning for Application in the Manufacturing of Large Fiber-Reinforced-Plastic Products","authors":"G. Luo, Kai-Lin Chen, Chen-Ting Hsu","doi":"10.1155/2023/7927196","DOIUrl":"https://doi.org/10.1155/2023/7927196","url":null,"abstract":"Software-based mold flow analysis is often performed to confirm optimized resin pipe arrangements. In this study, the GeoDict software and reverse scanning were employed to develop a method for performing rapid porosity and permeability estimation. A comparison of the results from one-dimensional resin flow and Easyperm tests revealed a 10% variation in the porosity and permeability parameters obtained through the proposed rapid estimation method. In addition, the obtained parameters were substituted into a Moldex3D model to simulate the resin flow on the personal watercraft hull during vacuum-assisted resin transfer molding (VARTM). A comparison of simulation results and hull infusion results revealed that the integration of the proposed rapid estimation method with Moldex3D allowed for the accurate simulation of the resin flow in large fiber-reinforced-plastic (FRP) products (variation <8%). The proposed method can be applied to large wind turbine FRP parts and large FRP yacht components to increase process planning efficiency and product stability.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46405330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effect of Raphia vinifera Fibre Size and Reinforcement Ratio on the Physical and Mechanical Properties of an Epoxy Matrix Composite: Micromechanical Modelling and Weibull Analysis 青花纤维尺寸和增强率对环氧基复合材料物理力学性能的影响:微观力学建模和威布尔分析

IF 3.3 4区化学

International Journal of Polymer Science Pub Date : 2023-05-23 DOI: 10.1155/2023/5591108

Syrille Brice Tchinwoussi Youbi, O. Harzallah, N. R. S. Tagne, P.W.M. Huisken, T. T. Stanislas, J. Drean, S. Bistac, E. Njeugna

{"title":"Effect of Raphia vinifera Fibre Size and Reinforcement Ratio on the Physical and Mechanical Properties of an Epoxy Matrix Composite: Micromechanical Modelling and Weibull Analysis","authors":"Syrille Brice Tchinwoussi Youbi, O. Harzallah, N. R. S. Tagne, P.W.M. Huisken, T. T. Stanislas, J. Drean, S. Bistac, E. Njeugna","doi":"10.1155/2023/5591108","DOIUrl":"https://doi.org/10.1155/2023/5591108","url":null,"abstract":"This study evaluates the effects of lengths and reinforcement ratio of Raphia vinifera fibres (RVFs) on the physical and mechanical properties of an epoxy matrix composite. Three volume fractions (20%, 30%, and 40%) and three lengths (5, 10, and 15 mm) of fibres were used to produce the composite, and the samples were subjected to the absolute and apparent density, porosity, water absorption rate, and tensile and flexural strength. The probability of failure of the composite is described by the means of two-factor Weibull model. In addition, a theoretical approach to predict mechanical characteristics based on empirical models was carried out. The results show that the addition of RVF decreases the density of the composite, while the porosity and absorption rate increase. The mechanical test shows that the tensile and flexural stress and Young’s modulus of the composite are lowered compared to those of the resin alone. Multivariate analysis of variance (MANOVA) and Tukey test showed that fibre lengths and reinforcement ratio significantly lower the mechanical properties of the composite. The distribution of strength and Young’s modulus follows Weibull’s law. Furthermore, the Cox–Krenkel mathematical model has the best approximated model for the experimental results after the tensile test. Based on these results, this material could be used as reinforcement parts for vehicle backrests or interior decoration in the construction industry.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41318907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Ring-Opening Polymerization of Lactones Catalyzed by Silicon-Based Lewis Acid 硅基路易斯酸催化内酯开环聚合的研究

IF 3.3 4区化学

International Journal of Polymer Science Pub Date : 2023-05-17 DOI: 10.1155/2023/4391372

Y. Nakayama, Keiya Katagi, R. Tanaka, T. Shiono

引用次数: 0

Surface Roughness Modeling of Material Extrusion PLA Flat Surfaces 材料挤压PLA平面的表面粗糙度建模

IF 3.3 4区化学

International Journal of Polymer Science Pub Date : 2023-05-13 DOI: 10.1155/2023/8844626

Kaltrine Jakupi, V. Dukovski, G. Hodolli

{"title":"Surface Roughness Modeling of Material Extrusion PLA Flat Surfaces","authors":"Kaltrine Jakupi, V. Dukovski, G. Hodolli","doi":"10.1155/2023/8844626","DOIUrl":"https://doi.org/10.1155/2023/8844626","url":null,"abstract":"Complex forms may be easily created with additive manufacturing methods, but managing surface roughness remains a difficulty, even for flat surfaces, because surface quality is dependent on numerous parameters. This research investigates the effect of some printing factors on surface roughness in 3D printing methods. The purpose of this study is to quantify the most influential input printing factors on surface roughness in 3D printing processes. Polyacrylic acid thermoplastic was used to print workpieces, and mathematical models were generated using the regression method to analyze the relationship between process parameters and surface roughness. The exponential model fits the experimental data slightly better than the linear model. Only Ra-90 met all surface roughness classification requirements, while surface roughness measurements in the 0 and 45-degree directions did not meet the requirements and cannot be used to describe the surface roughness. The study highlights the importance of considering input printing parameters when optimizing surface roughness in 3D printing processes, providing valuable insights into the impact of process parameters on surface roughness.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45954028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Acid–Base Pretreatment and Enzymatic Hydrolysis of Palm Oil Mill Effluent in a Single Reactor System for Production of Fermentable Sugars 棕榈油厂废水的酸碱预处理和单反应器酶解制备发酵糖

IF 3.3 4区化学

International Journal of Polymer Science Pub Date : 2023-05-08 DOI: 10.1155/2023/8711491

N. Deb, M. Alam, T. Rahman, M. Al-Khatib, M. Jami, M. F. Mansor

{"title":"Acid–Base Pretreatment and Enzymatic Hydrolysis of Palm Oil Mill Effluent in a Single Reactor System for Production of Fermentable Sugars","authors":"N. Deb, M. Alam, T. Rahman, M. Al-Khatib, M. Jami, M. F. Mansor","doi":"10.1155/2023/8711491","DOIUrl":"https://doi.org/10.1155/2023/8711491","url":null,"abstract":"Palm oil mill effluent (POME) is one of the main agro-industrial wastewaters in Malaysia. Highly polluting POME is a serious threat to the environment. In recent years, the methods used to treat POME are inefficient and complex in terms of cost or environmental preservation. The main object of this research is to propose a single reactor system (SRS) obtained from POME wastewater discharge as a promising low-cost treatment and high-energy method for harvesting the fermentable sugar by applying acid–base–enzyme pretreatment and hydrolysis of POME by locally produced cellulase enzymes to enhance biofuel production. Several experiments were conducted to produce fermentable sugars through the statistical methods, including the characterization of POME, acid-base pretreatment, and enzymatic hydrolysis process for reducing sugar production. The one-factor-at-a-time (OFAT) results showed that the highest reducing sugar yield, 23.5 mg/mL of POME, was achieved by enzymatic hydrolysis in an SRS without having a separation and purification. Based on OFAT performance, optimization of two factors such as substrate concentration (total suspended solids, TSS %w/v) and enzyme loading (μmol/min) was carried out by applying face-centered central composite design (FCCCD) under the response surface methodology (RSM) to develop a second-order regression model. The optimum reducing sugar production was 26.6 mg/mL (53.14%) with the conditions of 5% w/v, TSS, and 80 μmol/min/mL of the enzyme dose. In addition, the results of this research can be further considered in biofuel production using other wastewaters to enhance biofuel production as well as wastewater treating functions and minimize the negative environmental impacts.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47308484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1